Zusammenfassung der Ressource
Heart function definitions
- Venous return
- the mechanisms that
return blood to the
heart
- Starlings law of the heart
- the greeter the venous return,
the greater the strength of the
contraction
- atrio-ventricular node
- tissue found in the trio ventricular
septum that from part of the heart
conductive systems
- perkinje fibers
- specilised nerev fibres found in the ventricls
- Stroke volume
- volume of blood leaving the left ventricle per beat
- intrinsic
- tha name given to the idea that the heart
generates its own contraction from with in the
heart ( the heart is self paced )
- sino-atrial node
- small mad of cardiac tissue located in the wall
of the right atrium which generates the heart
beat
- systemic circulation
- blood circulation from the
heart to the body and then
back to the heart
- Cardiovascular drift
- an increases in the heart rate that occurs
during prolonged exercise that compensates
for the decreased in the stroke volume in an
attempt to maintain cardiac output
- Bradycardia
- the reduction in the testing
heart rate that accompanies
traning
- Hypertrophy (athletes heart)
- the increased size of the heart,
focused on the increased size of the
left ventricle
- Chemoreceptors
- group of cells that detect
changes in the blood acidity
- Cardiac output
- volume of blood leaving
the left ventricle per
minute (stroke volume X
heart rate)
- Ejection fraction
- proportion of blood in left
ventricle pumped out each beat
- bundle of his
- specialised bindles of nerve tissues found in
the interventricular septum that form part
of the hearts conductive system
- pulmonary circulation
- blood circulation from the
heart to the lungs and the
returns to the heart
- myogenic
- impulses generated
without nervous
stimules